<template>
 <view>
     <view class="goods-list">
       <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
         <my-goods :goods="goods"></my-goods>
       </view>
     </view>
   </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj: {
              // 查询关键词
              query: '',
              // 商品分类Id
              cid: '',
              // 页码值
              pagenum: 1,
              // 每页显示多少条数据
              pagesize: 10
            },
              // 商品列表的数据
          goodsList: [],
                // 总数量，用来实现分页
          total: 0
          
       }
    },
    onLoad(options) {
      // console.log(options)
      // 将页面参数转存到 this.queryObj 对象中
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      // 调用获取商品列表数据的方法
        this.getGoodsList()
    },
    methods: {
      // 获取商品列表数据的方法
      async getGoodsList(cb) {
        // 发起请求
          this.isloading = true
        const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        this.isloading = false
        cb && cb()
        if (res.meta.status !== 200) return uni.$showMsg()
        // 为数据赋值
        this.goodsList = [...this.goodsList, ...res.message.goods]
        this.total = res.message.total
      },
      gotoDetail(goods){
         uni.navigateTo({
            url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
          })
      }
    },
    onReachBottom() {
      if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
       if (this.isloading) return

      // 让页码值自增 +1
      this.queryObj.pagenum += 1
      // 重新获取列表数据
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 1. 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
      // 2. 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
